Motor.



w. s. ELLIOTT.

MOTOR. APPLIOATION FILED I IOV. 1, 1912. 1,060,068. Patented Apr.29,1913.

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wrrmzsszs mum-row M TM! l W. S. ELLIOTT.

MOTOR.

GATION FILED NOV. 1. 1912.

APPLI Patented Apr. 29, 1913.

3 SHEETS-SHEET 8.

if S. ELLIOTT, OF PITTSBURGH, PENNSYLVANIA.

MOTOR.

Specification of Letters Patent.

Patented Apr. 29, T9113.

Original application filed March 20, 1911, Serial No. 615,600. Divided and this application filed November 1, 1912. Serial No. 729,075.

b invented a new and useful Improvement in Motors, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which- Fi ures 1 and 2 are views partly in longitu 'nal section and partly in side elevation, of two different forms of motors'embodying my invention; Fig. 3 is a complete longitudinal section of the motor of Fig. 2;-

V it Fig. 4: is a section on the line IVIV of Fig. 1; Fig. 5 is a transverse section on the line V-V of Fig. 3; and Figs. 6, 7 and 8 are detail perspective views of certain of the parts.

db The present invention is a division of my copendlng application Serial No. 615,600, filed March 20, 1911.

My invention has relation to fluid pressure motors, and is desi ed to provide an-efii- '35 cient motor, in w ich the parts can be uickly and readily assembled and removed em the motor casing, and is applicable both to motors of the turbine type, m which water is used as a motive power, and also to motors of the radially reclprocating type in which air or steamforms the motive power.

The nature of my invention will be best understood by reference to the accompanying drawings, in which I have shown several different embodiments thereof, and

which will now be described, it being premised, however, that various chan can be made in the details of construction and arrangement of the parts without departing from the spirit and scope of my invention.

open at both ends, being preferably formed with an interior rabbet at 3, to receive the flange of the coupling member 4 for the supply pipe. The motor shown in these figures is especially adapted for use with comw pressed air, and is of the radially reciprocating piston type. 5 designates the front bearing member of the motor, which is in serted within the front endof the casing 2, and has the flange 6 at its outer end for on- W gagement with the end oi the casing. This member 5 is formed with an exhaust port 7 tor the free escape of the exhaust air; and it also carries a bushing 8, which forms the front bearing for the motor shaft 9. 10 des- 1gnates therear bearing member of the motor, which is open at its rear end and is interlorly threaded to receive the movable nut 11. Seated in this member 10 is a removable bearing seating member 12, in which is a bushing 13, which forms a bearing for the rear shaft gournal 14. The space within the rear end 0 the casing 2 surroundin the reduced rear portion of the member 10 orms an admission chamber into which the fluid enters through ports in the coupling 4, and having ports at its frontend which communicate with the interior of the motor cyllnder through the ports 16, 16 and 16". The cylinder-forming member is shown at 17. This member is interposedbetween the iront and rear bearing members 5 and 10, and forms a tie connection between said memhere, with which it. is removably interlocked.

This cylinder-forming member is shown in lift nate cross-ports, whlch communicate with an exhaust port 24 in the cylinder member, thefport 241*, in turn, communicating with the port 7 in the front bearing member.

In asscmblin the parts, the cylinder member is interloc ed with the earing members, and the shaft and piston are inserted from the rear, after which the members 11 and 13 are seated and secured. These parts are then all inserted into the casing 2 from the front end thereof, and are secured by means of the con ling member a, which has a screw-three ed engagement at 24; with the rear portion of the member 10. By unscrewing the cou ling 4:, the motor-forming parts can be all moved from the casing through the front end thereof and can then be disassembled in the reverse order to that just described. The bearing and cylinderforming members may be prevented from lid rotating within the casing 2 by any suitable means, such as the dowel pin 25, which en-n gages a recess 26 in the cylinder member 17.

The form of motor shown in Figs. 1, 4 and 6 is a motor of the turbine type. It is, so far as material to my present invention, generally similar in construction to the form first described, but differs therefrom in certain details. In this figure, the numeral 27 designates the frontbearing member, and 28 the rear bearing member. 29 is the cylinder-formin member, shown in perspective in Fig. 6, an having pro ecting hook portions 30, which are adapted to engage L-shaped recesses 31 in the front and rear bearing portions 27 and 28, normally held in such engagement by means of the pins 32. These pins can be loosely seated, since, when the parts are assembled within the outer casing, they are held by the latter from fall-. The turbine wheel- (not shown);

mg out. is secured to the shaft 33 to rotate within the cylinder member 29. In assembling this form of motor, the turbine wheel is placed within the cylindrical member 29, and the latter is inserted between the members 27 and 28, and is held in position by the pins 32. The shaft is then inserted through the wheel from the rear; and these parts are then inserted within a casing from the frontend, and are secured by the coupling member 4 corresponding to the couplin member 4 first described. The rear sha t bearing is shown in Fig. 4 as consisting of a bushing 34 carried by the member 28. The front shaft bearing may consist of a bushing of the same character and arrangement as the bushing 8 shown in Figs. 3 and 5.

The advantages of my invention result from the manner in which the parts are constructed and arranged, so that they can be readily assembled and disassembled, the cylinder, in its assembled position, constituting a tie connection between the end bearing members, the whole being protected by the outer casing 2.

The combination of front and rear bearing members, cylinder, and tie connection,

herein described is more broadly claimed in my said application Serial No. 615,600, the present case having more particular relation to a construction in which the cylinder member forms the tie.

I claim 1. In a rotary motor, an intermediate open-end cylinder, bearing members removably secured to the opposite end portions of said intermediate cylinder and forming heads therefor, the cylinder acting as an intermediate tie between the head and bearing members, and said cylinder having casing means inclosing it for at least a major portion of its length; substantially as described.

2. In a rotary motor, an intermediate open-end cylinder member, bearing members removably secured to opposite end portions of said cylinder member and forming.

heads therefor, the cylinder acting as an intermediate tie between said bearing members, and said cylinder having casing means inclosing it for at least a major portion of its length, said casing means projecting endwise beyond the. ends of the cylinder member and coacting with the bearing members; substantially as described.

3. In a rotary motor, an intermediate open-end cylinder, bearing members removably secured to the opposite end portions of said intermediate cylinder and forming heads therefor, the cylinder acting 'as an intermediate tie between the bearing members, and the cylinder having casing means inclosing it for at least a major portion of its length, said head and bearing members each having an elongated bush bearing for the motor shaft; substantially as described.

4. In a rotary motor, an intermediate openend cylinder, bearing members removably secured to the opposite end portions of said intermediate cylinder and forming heads therefor, the cylinder acting as an intermediate tie between said head and bearing members, said cylinder having casing means inclosing it at least for a major portion of its length, and a wear plate between one end of said intermediate cylinder and the inner end of the adjacent bearing member; substantially as described.

5. In a rotary motor, an intermediate open-end cylinder, bearing members removably secured to the opposite end portions of said intermediate cylinder and forming heads therefor, the cylinder acting as an intermediate tie between said bearing mem- 105 bers, said cylinder having casing means inclosing it for at least a major portion of its length, and a ported wear late inter posed between the front end 0 the intermediate cylinder and the inner end portion 110 of the front bearing member; substantially as described.

6. In a rotary motor, an intermediate open-end cylinder, bearing members removably secured to opposite end portions of said 11! intermediate cylinder and forming heads therefor, the cylinder acting as an intermediate tie between said bearing members, said cylinder'having casing means inclosing it for at least a major portion of its length, 120 and a 'motor shaft journaled in said hearing members and projecting from the motor through one of said members, the other member having means for attaching a sup ply hose thereto; substantially as described. 125

7. A rotary motor having front and rear bearing members provided with shaft bearings and separated from each other longitudinally of the motor, and a cylinder-form ing member intermediate of said members 139 and having hook port-ions.- which interlock therewith, the cylinder-forming member actin as a tie between the bearing members; substantially as described.

8. A' rotary motor having front and rear bearing members provided-with shaft bearings and separated from each other longitudinally of the motor, and a cylinder-forming member intermediate of said members and having hook portions which interlock therewith, the cylinder-forming member acting as a tie between the bearing members, together with a casing inclosing all of said members; substantially as described.

9. A rotary motor, comprisin separated bearing and head-forming members, a cylinder member having a portion of maximum diameter seating between the adjacent ends of the said members and having its end portions in securing engagement with said end members to form a tie connection therefor; substantially as described.

104A rotarymotor having end members containing bearings, and a cylinder between the end members, portions of the end members having overlappin engagement with the cylinder; substantia ly as described.

11. A rotary motor having end members containing bearings, and a cylinder separating the end members, the outer wall of the cylinder being provided with engaging means to engage overlapping portions of the end members; substantially as described.

12. A rotary motor having front and rear bearing members, a cylinder interposed be tween the said members, the end members having extensions beyond the cylinder, and means for attachin said extensions to the cylinder; substantia y as described.

13. A rotary motor having end members, atleastone of the end members havin a recess containinga wear plate, a eylin er member interposed between the end members and bearing against the wear plate the end members having extensions beyond the end portions of the cylinder, with means for attaching said extensions to the cylinder; substantially as described.

In testimony whereof, I have hereunto set my hand.

-- WILLIAM S. ELLIOTT, Witnesses:

M. K. RILEY,

JAB. E. WATSON. 

